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Math Help - indices (i think)

  1. #1
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    indices (i think)

    hi this is my question:

    5^6 x 25^2

    would it = 5^8?
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  2. #2
    MHF Contributor Amer's Avatar
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    Quote Originally Posted by andyboy179 View Post
    hi this is my question:

    5^6 x 25^2

    would it = 5^8?
    5^6 \times 25^2 =5^6\times (5^2)^2= 5^6 \times 5^{2\cdot 2} = 5^6 \times 5^4 = 5^{6+4} = 5^{10}
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  3. #3
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    Quote Originally Posted by Amer View Post
    5^6 \times 25^2 =5^6\times (5^2)^2= 5^6 \times 5^{2\cdot 2} = 5^6 \times 5^4 = 5^{6+4} = 5^{10}

    how did u get (5^2)^2?
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  4. #4
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    Quote Originally Posted by andyboy179 View Post
    how did u get (5^2)^2?
    Because 5^2 = 25
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  5. #5
    MHF Contributor Amer's Avatar
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    Quote Originally Posted by andyboy179 View Post
    how did u get (5^2)^2?
    25 = 5\times 5 =5^2

    25^2 = 25 \times 25 = 5^2 \times 5^2 = 5^{2+2} = 5^4
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  6. #6
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    oh i understand now, thanks alot
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